Processing considerations for cast Ti–25Nb–3Mo–3Zr–2Sn biomedical alloys

Bermingham, Michael; McDonald, Stuart D.; Buddery, Alexander; StJohn, David H.; Dargusch, Matthew S.

doi:10.1016/j.msec.2011.06.011

Cited by 14 publications

(8 citation statements)

References 16 publications

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“…9,10) Concerning elastic properties of Ti-Zr alloys, Ho et al 11) investigated mechanical properties of a few cast Ti-Zr alloys with Zr concentration of up to 40 mass% (25.9 at%) and reported that their moduli of elasticity in bending were higher than that of pure Ti. Correa et al 12) measured dynamic elasticity modulus of three Ti-Zr binary alloys containing 5, 10 and 15 mass% Zr at room temperature using a torsion pendulum.…”

Section: Introductionmentioning

confidence: 99%

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Elastic Properties of As-Solidified Ti-Zr Binary Alloys for Biomedical Applications

2016

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Young s modulus (E), shear modulus (G), bulk modulus (K) and Poisson s ratio (ν) of Ti-Zr binary alloys containing 20, 40, 50, 60, 70 and 80 at% Zr and component pure metals (Ti, Zr) prepared by arc-melting followed by solidi cation process were determined precisely by ultrasonic sound velocity measurements. X-ray diffraction analysis showed that all the as-solidi ed alloys and pure metals were with a single-phase structure of the hexagonal close-packed lattice (martensitically formed α

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Section: Introductionmentioning

confidence: 99%

“…Since load-bearing biomedical appliances can be fabricated through conventional solidi cation technologies, such as investment cast hip stems, 10,13) the investigation of elastic properties of Ti-Zr binary alloys under as-solidi ed conditions is meaningful.…”

Section: Introductionmentioning

confidence: 99%

Elastic Properties of As-Solidified Ti-Zr Binary Alloys for Biomedical Applications

2016

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“…3 Many researches have been carried out on the tensile properties, pseudoelastic behavior, microstructure, structure and texture evolution, wear and processing of the TLM alloy. [8][9][10][11][12][13][14][15] But the research of corrosion resistant of the TLM alloy is less, only Huang et al 16 studied the effect of SMAT-induced grain refinement and dislocations on the corrosion behaviour of the TLM alloy. The effect of alloying elements on the corrosion property of titanium alloy were studied by many researchers.…”

Section: Introductionmentioning

confidence: 99%

Electrochemical behaviour of Ti–25Nb–3Mo–3Zr–2Sn biomedical alloy in different simulated physiological environments

Wang

Huang

Meng

2015

Materials Science and Technology

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The electrochemical corrosion behaviour of biomedical Ti-25Nb-3Mo-3Zr-2Sn (TLM) alloy was investigated in various simulated body fluids at 37¡0?5uC utilising potentiodynamic polarisation and current-time curves. The Ti-6Al-4V (TC4) alloy was also investigated to make a comparison. The different simulated body fluids comprised of 0?9%NaCl saline, Hank's and Ringer's solution were employed. The effect of heat treatment on the electrochemical behaviour of the TLM alloy was also considered. It was discovered that all the test specimens were passivated once immersed into the simulated body fluids. It was also found that the TLM alloy has poorer corrosion resistance in Hank's solution, due to the chemical composition of the Hank's. After different heat treated, the TLM alloy had different phases and microstructure, and the corrosion behaviour of the TLM alloy was different. In this study, after the heat treatment of 760uC/1 h/ACz550uC/6 h/AC, the TLM alloy had better corrosion resistance. Owing to the corrosion resistance of the TLM alloy was influenced by numerous factors, such as microstructure and the chemical composition of electrolyte, the corrosion behaviour of the TLM alloy is complex. By comparing with the corrosion behaviour of the TC4 alloy, the TLM alloy has poorer corrosion resistant than the TC4 alloy under the same conditions. But the current-time curves of the TLM alloy were more stable than these of the TC4 alloy with further experiments, because of the more passivation film on the surface of the TLM alloy.

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“…These alloys have lower elasticity modulus, higher strength, excellent corrosion resistance, and better toughness to compar with the a and a?b titanium alloys [9,10]. Hence, a metastable b titanium alloy, Ti-25Nb-3Mo-3Zr-2Sn (TLM) containing the nontoxic elements Nb, Zr, Mo, and Sn, was developed as biomedical material, which is suitable for implant applications [12][13][14][15][16]. The TLM alloy exhibits significant improvement in these properties compared to the previous generation titanium alloys, such as C.P.…”

Section: Introductionmentioning

confidence: 99%

“…titanium and Ti-6Al-4V alloy. It has a low elastic modulus, high strength, and exhibits considerable plasticity as well as pseudo-elastic characteristic [15,16].…”

Section: Introductionmentioning

confidence: 99%

Wear and Electrochemical Corrosion Behavior of Biomedical Ti–25Nb–3Mo–3Zr–2Sn Alloy in Simulated Physiological Solutions

et al. 2014

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The wear and electrochemical corrosion behavior of the biomedical Ti-25Nb-3Mo-3Zr-2Sn (TLM) titanium alloy was investigated in various simulated physiological solutions. Different simulated physiological solutions comprised phosphate-buffered solution (PBS), PBS with bovine serum albumin (PBS?BSA), and PBS with hyaluronic acid (PBS?HA) were employed. A potentiostat and a reciprocating friction and wear tester were used to study the wear and corrosion behavior of the TLM alloy. The influence of the chemical composition of the simulated solutions on the tribo-electrochemical behavior was considered by potentiodynamic studies under reciprocating friction and wear conditions. It was found that the corrosion tendency of the TLM alloy was the most obvious in PBS?HA under static corrosion condition, while it was just opposite with wear. Compared with static corrosion, the corrosion resistance of the TLM alloy was decreased with sliding conditions. The values of i corr were two orders of magnitude higher than those at static corrosion. This phenomenon shows that the wear accelerated corrosion. Under coexisting condition of both electrochemical corrosion and wear, the wear rate of the TLM alloy mutually influenced by both factors will be accelerated. Plastic grooves and deformation were observed on the worn surfaces of the TLM alloy by scanning electron microscopy (SEM). Through the observation of SEM, the tribological mechanism was a typical corrosive wear, and the main wear mechanisms were abrasive with adhesive wear under the interaction between corrosion and wear. The XPS results show that the passive films include the TiO

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Processing considerations for cast Ti–25Nb–3Mo–3Zr–2Sn biomedical alloys

Cited by 14 publications

References 16 publications

Elastic Properties of As-Solidified Ti-Zr Binary Alloys for Biomedical Applications

Elastic Properties of As-Solidified Ti-Zr Binary Alloys for Biomedical Applications

Electrochemical behaviour of Ti–25Nb–3Mo–3Zr–2Sn biomedical alloy in different simulated physiological environments

Wear and Electrochemical Corrosion Behavior of Biomedical Ti–25Nb–3Mo–3Zr–2Sn Alloy in Simulated Physiological Solutions

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